243111240144 has 60 divisors (see below), whose sum is σ = 683344975300. Its totient is φ = 80683195392.

The previous prime is 243111240101. The next prime is 243111240161. The reversal of 243111240144 is 441042111342.

243111240144 is a `hidden beast` number, since 243 + 1 + 1 + 12 + 401 + 4 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 229548308544 + 13562931600 = 479112^2 + 116460^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3653209 + ... + 3719160.

Almost surely, 2^243111240144 is an apocalyptic number.

243111240144 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

243111240144 is an abundant number, since it is smaller than the sum of its proper divisors (440233735156).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

243111240144 is a wasteful number, since it uses less digits than its factorization.

243111240144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7372612 (or 7372603 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

Adding to 243111240144 its reverse (441042111342), we get a palindrome (684153351486).

The spelling of 243111240144 in words is "two hundred forty-three billion, one hundred eleven million, two hundred forty thousand, one hundred forty-four".